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Montana Grazing Animal Unit Month (AUM) Estimator

Range and Pasture Technical Note Number MT-32

If you encounter any problems with the file provided on this page, please contact Technical Resources at 406-587-6822.

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Range and Pasture Technical Note Number MT-32 (PDF; 559 KB)

November 2004

Background

Rangeland and dryland pasture Animal Unit Month (AUM) estimations are needed for a variety of conservation planning and data applications.

Anticipated Uses of the AUM Estimator

  • Montana Department of Revenue - Application for Agricultural Classification of Lands, AUM calculations.
  • Any other uses where having a reasonable estimate of grazing potential facilitates soil and water conservation activities.

References for Using the AUM Estimator

Animal Nutritional Requirements
  • Nutrient Requirements of Beef Cattle, 1996. National Research Council. National Academy Press. Washington, D.C. Seventh Revised Edition.
  • National Range and Pasture Handbook, 1997. USDA-Natural Resources Conservation Service, Chapter 6. Washington D.C.
Forage and Rangeland Plant Communities
  • Montana Interagency Plant Materials Handbook, 1990. Montana State University, Extension Bulletin 69. Bozeman, Montana.
  • Ecological Site Descriptions. USDA-Natural Resources Conservation Service, Montana. Located in Section II, Field Office Technical Guide and on the web (click eFOTG, Section II, Ecological Site Descriptions).

If you have any questions, please contact:

Jon Siddoway, Rangeland Management Specialist
Phone: (406) 587-6790
Email: Jon.Siddoway

Ronald Nadwornick, State Resource Conservationist
Phone: (406) 587-6998
Email: Ronald.Nadwornick

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Last Modified: 08/19/2008